First photograph ever taken by phosphorescent light. The face is that of Mr. Tesla, and the source of light is one of his phosphorescent bulbs. The time of exposure, eight minutes. Date of photograph January, 1894.

Source (Tesla Universe)


Behind the scenes of an author, signing 700 books before last night’s dinner event. An efficient signature helps.

Hey Chris, do you ever sign so many books that you mess up your own signature? I mean, I know that you’re an astronaut and all, but nobody’s perfect. ;)





Dr. Krantz and Clyde mounted at the Smithsonian. Still my favourite thing ever.

Before Krantz died, he said to Smithsonian anthropologist David Hunt, “I’ve been a teacher all my life and I think I might as well be a teacher after I’m dead, so why don’t I just give you my body.” When Hunt agreed, Krantz added, “But there’s one catch: You have to keep my dogs with me.”

Awwwwwww :)

This is the happiest skeleton I’ve ever seen

And here’s the “before” to the Smithsonian’s “after”…


Picture: JIM ZIELINSKI/CATERS (via Animal photos of the week - Telegraph)


Detected primordial gravitational waves! See how looks the excitement of a big discovery in scientists, or more precisely, the emotion after experimental evidences about a theory, inflation theory, over one of the fathers of it. Assistant Professor Chao-Lin Kuo surprises Professor Andrei Linde with evidence that supports cosmic inflation theory.

Some links:

Shadow of the Colossus
5. Avion the Delta Phoenix

The most epic boss fight in video game history.

(Source: s0tc)


Actually, they all seemed to be interested in just about everything.

Daniel Bernoulli (1700-1782) is best known for his work in fluid mechanics, in particular for his discovery that pressure decreases as flow speed increases – a fact that today keeps carburetors running and fixed-wing planes in the air.

Leonhard Euler (1707-1783), Swiss mathematician and physicist sometimes called “the Galileo of mathematical physics,” did ground-breaking work across many fields. He discovered Euler’s number, e, the second most important constant in physics, after pi.

He also introduced much of modern mathematical terminology and notation, for example, the notion of a mathematical function.  Thus, Euler is justifiably remembered as a mathematician. However, he is also known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory.  [wp]

Joseph Fourier (1768-1830) was a pioneer in theories of heat and vibration. The technique he invented for this work – representing complex waves by adding together simpler waves – is now used everywhere in science and engineering.

Thomas Young (1773-1829) pioneered the “double-slit” experiment: shining a light through two narrow slits, he produced a pattern akin to the one produced by two overlapping water waves. This demonstration of the wave nature of light later became central to quantum mechanics.

Young made notable scientific contributions in the fields of vision, light, solid mechanics, energy, physiology, and language. He also advanced European understanding of ancient Egyptian hieroglyphs (notably, those on the famous Rosetta Stone). [wp]

Carl Friedrich Gauss / Gauß (1777-1855), called “the prince of mathematicians” by his contemporaries, is now best remembered for his “normal” (or Gaussian) distributions, which plot how likely things are to vary from average.

A German mathematician and physical scientist, he contributed significantly to many fields - in mathematics: number theory, algebra, statistics, analysis, differential geometry. In physics, he did work in geophysics, electrostatics, astronomy, and optics. [wp]

William Hamilton (1805-1865) reformulated Newtonian mechanics into what is now known as Hamiltonian mechanics. In doing so, he wrote the mathematical language in which modern physics, especially quantum theory, is expressed.

Sir William Rowan Hamilton was an Irish physicist, astronomer, and mathematician, who made important contributions to classical mechanics, optics, and algebra. [wp]

THE SCIENTIFIC TYPOGRAPHIES OF Dr. Prateek Lala: artistic representations of more than 50 influential physicists, cosmologists, and mathematicians – from Anaximander up to Stephen Hawking.

Images and descriptions reprinted (with revisions) from: Perimeter Institute 

NEXT UP: Ohm, Faraday, Maxwell, Röntgen, Tesla


We’ll be there.


Neil deGrasse Tyson

So epic.